Put the StableSR webui_786v_139.ckpt model into Comyfui/models/stablesr/
Put the StableSR stablesr_768v_000139.ckpt model into Comyfui/models/checkpoints/
Download the ckpt from HuggingFace https://huggingface.co/Iceclear/StableSR/
There is a setup json in /examples/ to load the workflow into Comfyui
Reference link pkuliyi2015/sd-webui-stablesr#57 you can significally increase speed with sd 2.1 turbo.
Put the sd_turbo.safetensors model into Comyfui/models/checkpoints/
Put the stablesr_webui_sd-v2-1-512-ema-000117.ckpt in webui_512v_models.zip into Comyfui/models/stablesr/
Yon can try turbo workflow in /examples/.
The example uses https://github.com/ethansmith2000/comfy-todo node for faster speeds.